Dhund means a heap of ruins, and Dhundai and Dibai are very near each other in sense if not in sound. Crooke also gives the word Dungar, a hill, and hence the name Dongara . . . . Lalitpur . . 468 or, as spelt in the Urdu column, Dungara, ...
During the oestrus cycle in the pig there does not appear to be distinct follicular waves as in cows; it has been proposed that the final growth of follicles to ovulatory size takes 19 days. The luteal phase is characterised by the secretion of progesterone from of the corpus luteum.
Duration of Heat. When female cows go into heat or estrus every few weeks, they enter a period of willingness to mate. When they're in heat, they allow intact males, bulls, to mount and mate with them. This period usually has a duration of between 12 and 18 hours. Some cows are in heat for no more than four hours, while others are in heat for as long as a full day.